/Engine/Source/Runtime/Slate/Public/Framework/MultiBox/MultiBoxBuilder.h
Adds an editable text entry with a VerifyTextChanged delegate
void AddVerifiedEditableText ( const [FText](API\Runtime\Core\Internationalization\FText) & InLabel, const [FText](API\Runtime\Core\Internationalization\FText) & InToolTip, const [FSlateIcon](API\Runtime\SlateCore\Textures\FSlateIcon) & InIcon, const [TAttribute](API\Runtime\Core\Misc\TAttribute)< [FText](API\Runtime\Core\Internationalization\FText) > & InTextAttribute, const FOnVerifyTextChanged & InOnVerifyTextChanged, const FOnTextCommitted & InOnTextCommitted, const FOnTextChanged & InOnTextChanged, bool bInReadOnly )